Updated: 10/19/2017

Pronator quadratus

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Origin Distal 1/4 of anterior surface of ulna
Insertion Distal 1/4 of anterior surface of radius
Action Pronates forearm; deep fibers bind radius and ulna together
Innervation Anterior interosseous nerve from median nerve (C8 and T1) (C8, T1)
Arterial Supply Anterior interosseous artery

   
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